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1. A mass of 1200 kg is placed in circular orbit of radius 2 x 10^7 m around the earth. What is the speed of the orbit?
2. (Original post by myabzz)
A mass of 1200 kg is placed in circular orbit of radius 2 x 10^7 m around the earth. What is the speed of the orbit?
Hello.

How far have you got with this problem?

Hint: Do you know the equations for the net centripetal force and the gravitational force both acting on the satellite? These forces must be in equilibrium, so write an expression equating them and then rearrange to solve for the speed.
3. (Original post by uberteknik)
Hello.

How far have you got with this problem?

Hint: Do you know the equations for the net centripetal force and the gravitational force both acting on the satellite? These forces must be in equilibrium, so write an expression equating them and then rearrange to solve for the speed.
Yes. Sorry for the late reply. I eventually got it

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